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    SubjectRe: 2.6.25-rc1 xen pvops regression
    Mark McLoughlin wrote:
    >> @@ -371,6 +372,9 @@ void __init dmi_scan_machine(void)
    >> }
    >> }
    >> else {
    >> + if (e820_all_mapped(0xF0000, 0xF0000+0x10000, E820_RAM))
    >> + goto out;
    >>
    >
    > One issue with using the e820 map for this is that a Xen Dom0 will also
    > have this region marked as RAM in the e820 map, but will set up a fixmap
    > for it, allowing dmi_scan_machine() to map the region.
    >

    Would it be easier to just fake up a mapping so that window points to
    the real dmi area, and mark E820 accordingly?

    J


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